Konstantin L

Konstantin L

UpstreamUpstream
Founding Engineer @ Upstream (YC S23)
#17777842 followers11 following
✨ 3 day streak
#5,903All time
1K KP

About

Building multiplayer email for modern teams. Product-minded engineer, previously at Yandex. Based in Paris.

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Maker History

  • Upstream
    UpstreamThe inbox designed for humans and agents
    Jun 2026
    • 🎉
    Joined Product HuntMarch 18th, 2015